Apparatus for the production of weft spools or cops on weft ring-spinning machines



IVI. CHANIZ. APPARATUS FOR THE PRODUCTION OF WEFT'SPOOLS 0R COPS ON WEFT RING SPINNING MACHINES.

Patented May 10, 1921.

2 SHErl1S-SHEEI I.

A APPLICATION FILED JUNE 8, I9I7. LS'F'L M70 .lll.

M. CHANE. .PPARATUS FOR THE PRODUQTION O F WEFT SPOOLS 0R COPSON WEFT RING SPIHNING MACHINES.

Puma May m 1921.

2 SHEETS-SHEEI 2.

APPLICATION -HLED JUNE 8, I917,

err.

1V1A'I'J'IBIICHE CHANE, 0F ROTTEN, FRANCE.

APPARATUS FOR THEPRODUCTION OF W'EFT SPOOLS 0B COPS 0N 'WEFTRING- SPINNING MACHINES.

Specification of Letters Patent.

Patented May it), 1921.

AppIication filed June 8, 1917, Serial 110.17%471.

similar devices, and is in the nature of an.

improvement upon the mechanism disclosed in my prior application, for method and apparatus for production of weft spools or cops on weft ringspinning machines, Serial No. 160,364, filed April 7, 1917. In this prior application 1 have disclosedmecha' nism for automatically changing the speed of the drawing rolls during an operation of the machine in order to increase the number of twists during the winding of the lower portion of the cop, and during the winding of the remainder the cop to have the normal number of twists.

An object of this invention is to provide improved means for effecting the change in the speedof the rolls, and particularly in means for obtaining sudden changes in the changeable speed mechanism. by normal operations of the machine.

A. further object is to provide a device of this kind which is cilicient reliable and simple in construction, and which will not necessitate any additional attention by or duties of the attendant of the machine.

Other objects and advantages will appear from the following description and the novel features of my invention will be particularly pointed out in the claims.

The accompanying drawings illustrate by way of example my present invention, in which- Figure 1 is a side elevation of my apparatus as applied to a weft ring spinning machine, and

Fig. 2 is an enlarged detail view of some of the elements shown in Fig. l and partly in section. D

In the drawings, a main drive shaft 10 1S supported in suitable bearings in the housing of a ring spinning machine, and has a sleeve 11 having a. pair of peripheral. gears 12 and 13 secured thereto, loosely mounted thereon. This sleeve is provided on one face withclutch teeth 14c adapted to engage the clutch teeth of a clutch member, which is longitudinally slidable on shaft 10 in a manner to be described. A fixed internal cylindrical drive block or drum 15, adapted to actuate the speed changing mechanism, which'will be hereinafter fully set forth, is fixed on the shaft 10, and is provided with a keyway 16, adapted to receive a key 17 secured to a clutch member. A member 18 is longitudinally slidable on the main drive shaft 10. The clutch member 18 is provided with an intermediate annular recess or chase'19. This annular recess receives pins for shifting the clutch longitudinally without preventing rotation of the clutch. This slidable clutch member 18 is provided on one end with clutch teeth 20 adapted to engage the clutch teeth ll of the loosely mounted sleeve 11, while the other end is provided with an annular flange or hollow drum 21, having clutch teeth 22 on its edge. The key 17 looks the slidable clutch to the fixed drive member 15, and compels its rotation in unison therewith, while permitting longitudinal movement thereof. A rotatable drive clutch 23 is loosely mounted on the main shaft 10 and is provided with a boss supported in a bracket 24. This drive clutch is provided on its annular surface with a peripheral gear 25 and has a forwardly projecting annular flange or drum 26 having clutch teeth 27 on its edge similar to the drum 21. The clutch teeth 27 are adapted to mesh with the clutch teeth 22 when the slidable clutch 18 is in the position shown in the drawings. A secondary shaft is located parallel to the main drive shaft 10, and carries gears 29 and 29 meshing with the gear 12 of the sleeve 11 and the gear 25 of the drive member 23 respectively, the gears 29 and 29 being of greater diameter than their coacting gears. ll. pair of pulleys 30 and 31 are mountedon the main shaft 10, the pulley 31 being fixed on shaft 10, serving to actuate the spinning machine while the pulley 30is loose, so as to be capable of rotation relatively to the shaft e., as an idler pulley). A drive belt, not shown, is adapted to be shifted to either one of said pulleys thereby rotating the main drive shaft 10 or permitting it to stand idle as the case may be. Theshifting of the belt is accomplished by a belt shifting mechanism which will be more fully described hereafter.

. pet 34 adapted, on the rise of saidring rail frame, to strike a trigger arm 35, pivoted in a bracket 36, secured to the frame of the spinning machine, at any convenient point. This trigger arm 35 is provided with a catch 37 at the end remote from that engaged by the tappet 34. A pin 38 extendsfrom the side of a clutch shifting arm 39, which is adapted to move the clutch 18 longitudinally with respect to the main drive shaft 10, and thereby change the speed at which gears 32 V are driven. The clutch shifting arm 39 is mounted on a rotatable shaft 40 carried by bracket 41 secured to the wall of the ring spinning machine, and is rovided with an adjustable stop screw 42. he lower end of this clutch shifting arm 39 is bifurcated at 44, so as to form a fork having two arms resting on each side of the clutch 18. Each of these arms is provided with an inwardly projecting pin 45 engaging the annular re- .cess or chase 19 in the clutch member 18.

The movement of the clutch shifting arm 39 moves the clutch 18 longitudinally with respect to the main drive shaft 10, and causes either the teeth 20 to'engage teeth 14,

.or the teeth 22 to engage the teeth 27 A spring 46 is connected to the upper end of the arm 39 tending to move the clutch 18 to the left when viewed as in the drawings,

and is preferably provided with suitable means for adjusting its tension. "A U- shaped arm 47 is mounted on the shaft 40, and is provided at its upper end with a catch pin 48 and a spring 49, having one end conveniently secured to the wall of the apparatus. A striking face 49 adapted to strike pin 42 is formed on the arm 4'7. A bell crank 50 is pivoted in a bracket 51 extending from the wall of the apparatus, one end of said crank being provided with a catch 52, to lock with the pin 48 on the arm 47, and to prevent movement of said arm on the shaft 40 until such time as the catch 52 is disengaged from the pin 48. A belt shifting mechanism 53 is mounted directly over the pulleys 30 and 31 in a suitable guideway, and is adapted to shift the drivebelt (not shown) from one pulley to the other as has been described. Connected to this belt shifting member is a projecting arm 54 having a finger 55 bolted to its outer end, one end of which is adapted to strike an adjustable stop 56 mounted on the arm 47 when moved to the right, and adapted to strike one arm of the bell crank 50 and rock the bell crank when moved to the left, as shown in Fig. 2 of the drawings, thereby releasing the catch 52 from pin 48. The depending arm of the bell crank is usually sufliciently the position shown in the drawings with the teeth 22engaging the teeth 27 the clutch 18 being rotated through the intervention of the key 17 located in the keyway 16 of the fixed member 15 as it always is irrespective of its position on the shaft 10, the drive clutch member 23 is thereby actuated,'rotating the gear 25 and gears 29 and 29, of the shaft 28. The gear 29, under these circumstances, rotates the gear 12 of the loosely mounted .sleeve 11,.and actuates the train of gears 32 at a lower rate of speed than if the clutch member were in such a position that the teeth 20 engaged the teeth 14. The gears 25, 29 29 and 12 are'so proportioned that when the clutch is in the position illustrated in Fig. 2, the gear 13 will be driven at a speed lower than when the clutch is in its other position. The rotation of the main drive shaft 10 simultaneously causes the ring rail 33 to rise in the usual manner. This carries the tappet 34 upwardly and causes the trigger arm 35 to rock on its pivot in the bracket 36 and thereby disengaging the catch 37 from the pin 38, and permitting the clutch shifting member 39, under the influence of spring 46, to move the clutch 18 suddenly to such position that its teeth 20 engage the teeth 14. During this operation of the clutch lever the stop 42 moves substantially into contact with the face 49 ofthe arm 47. This movement of the clutch 18 disengages its teeth 22 from. the teeth 27 of the rotatable clutch 23, and causes the gear 13 to be actuated by the fixed member 15 through the intervention of the keyway' 16, the key 17, clutch teeth 20 and 14 instead of the intervention of member 23. Under these circumstances the sleeve 11 and its gear 13 are rotated at the same speed as the shaft 10, that is to say, at a higher rate of, speed than when the clutch 18 is in the position as shown in the drawings. When the operator of the machine moves the belt shift ing member 53 to the left, as shown in the drawings, the belt is shifted from the active fixed drive pulley 31 to the idler pulley 30, thereby permitting the shaft 10 to cease its rotation. The movement of the belt shifting member 53 carries the arm 54 and its attached finger 55 to the left, thereby causing said finger to strike one arm of the bell crank 50 and rock it. This rocking movement of the bell crank 50 disengages the catch 52 from the pin 48 and permits the arm 47 to rotate in a counterclockwise direction actuated by spring 49. The stop 49 on the arm 47 thereupon engages the adjustable stop 42 on the clutch shifting arm 39, and shifts the clutch operating arm 39 in a counterclockwise direction (Fig. 2) and against the action of its spring &6 (the spring 49 being the more powerful of the two) until the pin 38 is engaged with and held by the catch 37. In this position, the clutch 18 is in the position shown in the drawings and the apparatus through the secondary shaft 28 and train of gears 32 is driven at its initial low speed.

When the belt is shifted back upon the fast pulley to again start the operation of the machine, the arm 54 and finger 55 are shifted to the right (Fig. 2) to release the bell crank 50 and to cause an extension 55 of the finger 55 to engage the stop '56 and rotate the arm 47 about its axis on shaft 40 and against the action of its spring 49 until the pin 48 is engaged and held in the Fig. 2 position by the catch 52. The arm 47 is therefore now in position to operate the clutch operating arm 39 when the belt is shifted to the loose pulley to stop the machine. It will be observed that during the ordinary operations of the machine, the clutch receives sudden operations in both clirections, and no additional duty is cast upon the attendant of the machine in order to obtain this result, nor is sudden operation of the belt shifter necessary.

It is manifest from the foregoing that when the belt shifting means 53 is moved to the left the clutch shifting mechanism assumes to the position shown in the drawings (2'. 6., a position at which the winding takes place at low speed). l/Vhen the spinning machine is started the ring rail rises and causes the shifting of the clutch so that the apparatus is driven at high speed.

I claim:

1. In spinning machines the combination of drawing mechanism, a drive shaft, a cop spindle driven by said shaft, means for rotatin g the shaft, a device for rendering said means effective and ineffective at will, means connecting the drawing mechanism to said shaft for operatin the drawing mechanism at two different speed ratios with respect to the shaft, said connecting means having a controlling element through operation of which the speed ratio is changed, automatic means operative when the formation of the cop has reached a desired stage for causing a sudden movement of the controlling element to change the speed ratio, mechanism controlled by said device when rotation of the shaft is stopped for causing a sudden movement of the controlling element to change the speed ratio, and means also com trolled by the device, when the latter is operated to render the shaft rotating means again effective in rotating the shaft, for restoring the said mechanism to its original position.

2. In ring spinning machines, the combination of the ring rail, means for driving the cops winding mechanism, means for controlling the activity of the machine, means settable to cause said driving means to operate at a plurality of different speeds including a controlling member, means con-v trolled by the ring rail for suddenly operating the controlling member in one direction to change the speed of the driving means when the formation of the cop has been partially completed, means operative when re leased for suddenly operating the controlling member in the other direction to posi-' tion the settable means for a further change in thespeed at which the winding mechanism will be driven, means operated by the activity controlling means for holding and releasing the last named sudden operating means when the machine is rendered inactive and for restoring the same to its held position when the machine is again rendered active. I

3. In ring spinning machines, the combi nation of a ring rail, means for driving cops winding mechanism, a member for controlling the activity of the machine, means settable to cause said driving means to operate at two different speeds, means controlled by the ring rail for suddenly operating the settable means to change the speed when the formation of the cop has been partially completed, means controlled by the activity controlling member when operated to stop the machine, for again suddenly operating the settable means to a condition to produce a further change in the speed of the winding mechanism when the machine is again made active. I

4. In a ring spinning machine, the combination of a ring rail, means for driving the cops winding mechanism, a member for controlling the activity of the machine, means settable to two positions to cause the said driving means to operate at two different speeds, a shiftablemember for operating said settable means to change the speed, a spring normally tending to shift the shiftable member to change the speed, a latch normally holding the shifting member against movement by the spring and adapted to be tripped by the ring rail when the formation of the cop has been partially completed, means normally tending to restore said shiftable means to its latched position and change the speed, latching means for preventing operation of said restoring means, the activity controlling member being adapted to trip the latching means when shifted to render the machine inactive, and

position and in engagement with the latchingmeans when shifted to render the machine active.

5. In ring spinning machines the combination of means for controlling the activity of the machine, driving means for cops winding mechanism and including gearing for driving the same at a plurality of different speeds, a shiftable member for changing the speed of driving of the mechanism, a ring rail, means controlled by the move ment of the ring rail for causing sudden operation of said member to change the speed when the formation of the cop has been partially completed, means normally tending to restore said member to initial position to cause the mechanism to be driven at the originalspeed, latching means mally preventing operation of said restoring means, one movement of said activity controlling means being adapted to actuate said latching means to release the restoring means and another movement being adapted to shift the'restoring means back to original position and permit the latching means to reengage it.

6. In a ring spinning machine, the combination of driving means for cops winding mechanism including changeable speed gearing, a memberfor changing said gearing to cause operation of said winding mechanism at different speeds dependent upon the position of the member, a ring rail, means controlled by the ring rail for operating said member in one direction to change the speed when the cop has been partially completed, a spring operated device for shifting said member in an opposite direction and position it for a further change in the speed of the driving means upon further operation of the gearing, means for controlling the activity of the machine, and means controlled by said activity controlling means when operated in one direction for permitting operation of said sprin opcrated device to shift said member andwhen operated in another direction for restoring said device to its initial position.

7 In a ring spinning machine, the com bination of driving means for cops winding mechanism including changeable speed gearing,a member for changing said gearing to cause operation of said Winding mechanism at different speeds dependent upon the po- 'sition of the member, a ring rail, means controlledby the ring railfor operating said member in-one direction to change the speed when the cop has been partially completed, a spring operated device for shifting said member in the opposite direction to position it for a further change in the speed, a latch for holding said device against operation, means for controlling the activity of the machine adapted to trip said latch to release said device when operatedin one direction, and to restore said device to latched position when operated in another direction.

8. In a ring spinning machine, the combination (of variable speed driving means for the cops winding mechanism, a member controlling the rateof speed of the winding mechanism by its position, a spring constantly tending to shift said member to change the speed, a ringrail, means controlled by the ring rail for permitting operation of said member by'said spring, a spring operated device for shifting said member back to its original position, and means for controlling the activity of said machine and of said spring operated device.

9. In clutch shifting mechanism, the combination of a clutch, a clutch shifting arm connected to said clutch whereby said clutch is held in a given position, a trigger arm actuated by the movement of the ring rail of the spinning machine locking said clutch shifting member in a given position, the movement ofthe ring rail releasing said clutch shifting member, an arm adapted to move said clutch to its initial position, a bell crank adapted to hold said arm in locked position and a finger'adapted to rotate said bell crank moved by the operator, whereby said arm is adapted to restore the clutch to its initial position. 5

- 10. The combination with a cops winding mechanism of a main drive shaft, means actuated by said shaft to drive said winding mechanism, means to change the speedof said winding mechanism, a clutch to lock said speed changing means to the main shaft, a spring actuated clutch shifting member, a trigger initially locking said clutch shifting member in a given position and operated by the movement of the ring rail of the winding machine, the rise of the ring rail releasing the trigger; and permittingthe spring actuated clutch shifting member to move the clutch whereby a diii'erent speed is imparted to the cops winding mechanism, a second spring actuated member for restoring said first spring actuated member to its initial position, and means for controlling the activity of the machine and of said second spring operated member.

11. In a spinning machine the combination of drawing mechanism, a ring rail, a main drive shaft, a cop spindle driven by said shaft, variable speed mechanism connecting the drawing mechanism to the shaft for operation thereby, at two different speed. ratios, automatic means operable when the cop has reached a desired state of completion for operating the speed mechanism to change the-speed ratio with respect to the main drive vshaft at which the drawing mechanism is driven, means for controlling the activity of the shaft, and means controlled by the shaft activity controlling means when the shaft is rendered inactive for setting the variable speed mechanism in condition for operation at a difierent speed ratio.

12. In a spinning machine the combination of drawing mechanism, a ring rail, a main drive shaft, a cop spindle driven by said shaft, variable speed mechanism connecting the drawing mechanism to the shaft for operation thereby, at two diiferent speed ratios, automatic means operable when the cop has reached a desired state of completion for operating the speed mechanism to change the speed ratio with respect to the main drive shaft at which the drawing mechanism is driven, means for controlling the activity of the shaft, and means controlled by the shaft activity controlling means when the shaft is rendered inactive for setting the variable speed mechanism in condition for operation at a different speed ratio, and when the shaft is rendered active for resetting the automatic means to its original condition.

In testimony whereof I affix my signature 25 in presence of two witnesses.

MAURICE CHANE.

Witnesses T. OUMAIL, J. SERVIEL. 

